I want to reformat an acer aspire 1800. the 1st problem when the system boots up is starts checking files & folders on partition "D" and it takes a day or more to complete the scan; then it keeps its takes another day or more to load the personal settings which I just stop after 1 day because it was still loading. It's very very slow. I shut down the pc and put the recovery cd in but the system goes back to the same scan screen again. It doesn't boot from the cd so I can't reformat the drive. How do I get it to boot from the cd-rom. I went into setup to change the boot sequence to boot from cd 1st but cd isn't listed as a boot option. It has HDD, ODD, USB, PCI LAN as boot options to select from in that order.